Dust-excluding means for explosive-motors.



J. M. KROYER.

DUST EXCLUDING MEANS FOR EXPLOSIVE MOTORS. APPLICATION FILED NOV. 2, 1915.

1,200,202. Patented Oct. 3,1916.

INVENTOR. WITNESS. i J

JOHN M. KROYER, 0F STOCKTON, CALIFORNIA.

DUST-EXCLUDING- MEANS FOR EXPLOSIVE-MO'IORS.

Specification of Letters Patent.

Patented-Oct. 3, 1916.

Application filed November 2, 1915. Serial 1V0. 59,304.

tion.

This invention relates to improvements in attachments for explosive motors, the object of the invention being to produce a means for keeping the air which is admitted I tive for the purposes for which it is dey to the internal mechanism of the motor both above and below the pistons,entirely free from dust-or grit.

In explosive motors a great deal of dust and dirt is sucked in through the carburetor inlet and also (and this latter is the most injurious of the two) the air taken in through the breather hole of the crank case is full of dirt and dust which tends to cut out the bearings and wearing parts of'the m0- tor. This is especially true of the motors of tractors, especially those used for drawing farming implements where a great amount of dirt and dust is continually agitated and blown around the vicinity of the motor.

My improved invention is designed to serve the doublepurpose of keeping the air admitted to the carburetor of the motor and also that admitted to the breather hole of the crank case entirely free from dirt, matter.

A further object of the invention is to produce a simple and inexpensive device and yet one which will be exceedingly effecsigned.

These objects I accomplish by means of such structure and relative arrangement of parts as will fully appear by a perusal of the following specification and claims.

In the drawings similar characters of reference indicate corresponding parts in the several views. Figure 1 is aside elevation of a motor showing my improved attachment conit and dust or other deleterious nected therewith. Fig. 2 is a sectional view of the cleanser receptacle.

Referring now more particularly to the characters of reference on the drawings, the numeral 1 designates the motor, 2, the air intake of the carbureter, and 3, the breather hole.

My improved device comprises primarily a receptacle 4 having a suitable drain bottom 5 having a drain plug 6. Extending through the bottom of the receptacle 4 is an air inlet pipe 7 which projects upwardly into the receptacle 4.

The numeral 8 designates water or other cleansing material which is filled part way into the receptacle 4 slightly below the top level of the pipe 7. This level is maintained by reason of a test pet cock'9 in the side wall of the receptacle 4'near the level of the upper end of the pipe 7 through which any overflow of the material 8 may be drawn off from the receptacle 4. Disposed on the top level of the material 8 and sinking part way belowthe level is a float 10 which surrounds the upper end of the pipe 7 in spaced rela-' tion thereto. Projecting upwardly from the float 10 is an inclosed chamber or, receptacle 11 into which the upper end of the pipe 7 opens. The upper end of the receptacle 4 is provided with an outlet 12 connected by a pipe 13 with the air inlet of the carbureter, while the numeral 14 designates another outlet connected by a pipe 15 with the breather hole 3 ofthe crankcase of the motor 1. The outlet 14 is provided with a hinged flat check valve 16 for a purpose as will presently appear.

In practice the air to be taken into the carburetor and also into the breather hole is drawn through the pipe 7 and into the float chamber 11. From there it is sucked down through the space between the float 10 and the pipe 7 and through the water or otherv liquid 8, and thence out of ing this brief period, a slight amount of the-v air will be drawn through the opening 14,

but when the tendency to vacuum in the There will crank case overcomes the suction through the outlet 12 this valve 16 will be drawn closed. By reason of this operation, while a suflicient amount of air will be admitted to the crank case to sufliciently overcome the vacuum, still enough vacuum will be left to prevent suction through the member 12 from holding the valve 16 open and allowing particles of grease, dirt, and other matter to be drawn from the crank case into the receptacle 4. By reason of the air all passing through the fluid 8, the same will be relieved of dirt, dust and other deleterious matter Which would tend to cut the bearings and wearing parts of the motor.

Depending'downwardly from the member 11 and into the pipe 7 is an indicator rod 17,

which, when the level of the material 8 becomes too low, will" project below the bottom of the receptacle to indicate this fact, whereupon the receptacle can be refilled through an upper removable plug 18. When the material 8 becomes overcharged with dirt, dust or other deleterious matter, the same may be drawn off through the bottom by removing the plug 6. On the float 10 readily seen that I have produced such a device as substantially fulfils the objects of the invention as set forth herein.

While this specification sets forth in detail the present and preferred construction of the device, still in practice such deviations from such detail may be resorted to as do not form a departure from the spirit of the invention, as defined by the appended claims.

Having thus describedmy invention what I claim as new and useful and desire to secure by Letters Patent, is:

1. The combination with an explosive motor, of an air cleanser, a pipe leading Y from the cleanser to the breather? hole in the crank case of the motor, and means for maintaining a suction from the cleanser independently of that through the pipe connected with the crank case.

2. The combination with an explosive motor, of an air cleanser, and a pipe leading from the cleanser to the air intake of the carbureter of the motor, and another pipe leading from the cleanser to the breather hole in the crank case of the motor, as described.

3. The combination "with an explosive motor, of an air cleanser provided with a pair of outlets, one outlet being connected with the air intake of the carbureter of the motor, and the other being connected with the breather hole of the crank case of the motor, and a check valve interposed over the last named outlet, as described.

In testimony whereof I aflix my signature.

' JOHN M. KROYER. 

